How important are rocks for industrial development?

The importance of rocks in industrial development are:

1. Rocks contain minerals called ores which are used for extracting metals and non-metals.
2. They provide fossil fuels like coal and petroleum.
3. The entire automobile industry uses petrol for their transport system.
4. They provide raw material for manufacturing industries like limestone and gypsum are needed by cement industry.
5. They are used as building materials. For example, granite and marble.